Talk:Oxygen

You should point out that there is Oxygen as O2 and Oxygen as a category for buildings.

-How should i do that? i mean which format?

The article states that Air Scrubbers convert CO2 back to Oxygen, but I think that is wrong, they just consume the CO2 and mix it with water, which becomes contaminated by it. SchlauFuchs (talk) 04:29, 19 March 2017 (UTC)

yes removed scrubbing, added methods, new categories todo:numbers for new categories, for dupe output co2 ~Champein